How To Use External Class In YII2 Step By Step [closed] - php

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So i have a class i have used couple of times for other non YII projects but now i want to use the same class in a YII2 project. I have done some searches but i kind of got stuck along the way. Below is what i have done so far:
I created a folder called "utility" in the vendor directory, the utility folder contains my class named "AT_Response.class.php". So my question is how do i include or call and use this class in my model or controller.
I have checked some links like :
https://www.yiiframework.com/doc/guide/2.0/en/tutorial-yii-integration
https://forum.yiiframework.com/t/not-understanding-how-to-use-external-php-library/79679
Class Code:
<?php
class AT_Response {
static private $response = array
(
'9999' => array('description' => "Unexpected Response", 'definite' => true, 'status' => "Indeterminate"),
'00' => array('description' => "Success", 'definite' => true, 'status' => "Success"),
'NNC_AUTH_01' => array('description' => /*"Status unknown, please wait for settlement report"*/"System Error", 'definite' => true, 'status' => "Failure"),
'NNC_VTU_01' => array('description' => "Ttimed out", 'definite' => false, 'status' => "Indeterminate"),
'NNC_VTU_02' => array('description' => "Exceeded max number of requests for Phone number per time period", 'definite' => true, 'status' => "Failure"),
'NNC_VTU_03' => array('description' => "Invalid target MSISDN supplied", 'definite' => true, 'status' => "Failure"),
'-1' => array('description' => "Not successful", 'definite' => false, 'status' => "Failure"),
);
static function getResponseByCode($respCode) {
if (isset(self::$response[$respCode]))
return self::$response[$respCode];
//else
return self::$response['9999'];
}
}
Thanks

Answer 1

With a few changes you can use any custom class as a helper component. You need to use namespace and use statement for the existing class you have, see the below
<?php
namespace app\components;
class Response
{
/**
* #var array
*/
private static $response = array
(
'9999' => array('description' => "Unexpected Response", 'definite' => true, 'status' => "Indeterminate"),
'00' => array('description' => "Success", 'definite' => true, 'status' => "Success"),
'NNC_AUTH_01' => array('description' => /*"Status unknown, please wait for settlement report"*/"System Error", 'definite' => true, 'status' => "Failure"),
'NNC_VTU_01' => array('description' => "Ttimed out", 'definite' => false, 'status' => "Indeterminate"),
'NNC_VTU_02' => array('description' => "Exceeded max number of requests for Phone number per time period", 'definite' => true, 'status' => "Failure"),
'NNC_VTU_03' => array('description' => "Invalid target MSISDN supplied", 'definite' => true, 'status' => "Failure"),
'-1' => array('description' => "Not successful", 'definite' => false, 'status' => "Failure")
);
/**
* #param $respCode
*/
public static function getResponseByCode($respCode)
{
if (isset(self::$response[$respCode])) {
return self::$response[$respCode];
}
return self::$response['9999'];
}
}
Save the Above class in a file called Response.php in app\components folder if using basic-app or common\components if you are using advanced-app but dont forget to change the namespace in the code.
You can then call the function getResponseByCode() like app\components\Response::getResponseByCode($responseCode) or common\components\Response::getResponseByCode($responseCode)